题型:阅读理解 题类:常考题 难易度:普通
黑龙江省哈尔滨市第六中学2017-2018学年高二下学期英语期中考试试卷
If doctors want to test you for something, they'll usually take a blood or urine sample. But wouldn't it be much more convenient if they just asked you to breathe through a special instrument?
In fact, your breath can say a lot about you. In traditional Chinese medicine, doctors draw a conclusion about the health state of a patient based on the smell of his or her breath; trained dogs and rats can identify the smells of the breaths of people suffering from certain cancers; traffic police also monitor drivers' alcohol consumption by testing their breaths.
Just like blood and urine, your breath contains lots of “metabolites” —the waste chemicals that the body produces, which vary from person to person. They are like personal health fingerprints, which is why scientists sometimes call them “breathprints”, according to Science Daily.
Compared to blood or urine testing, breath testing takes only seconds instead of hours, and it requires neither a needle nor a container to hold the body fluids(液). This means the test can be taken frequently to better detect early signs of diseases and monitor the progress of a medical treatment.
On the other hand, as an identifier, you might think that breaths are not as reliable as fingerprints since they might change based on what you eat. However, researchers in Zurich, Switzerland mapped 11 healthy volunteers' chemical patterns by having them breathe through a special instrument, and they found that each pattern was unique and the patterns didn't change much throughout the day, reported BBC.
“Our goal is to develop breath analysis to the point where it becomes competitive with the established analysis of blood and urine,” said Malcolm Kohler, professor at the University Hospital Zurich.
Destination Travels
78 Soho St,
New York, NY
Dear Ms Pierce,
Thank you for trusting Destination Travels for your honeymoon plans. This letter includes all the information regarding the flights and accommodation arrangements we have already agreed on.
Date | Flight No. | Place/Time Depart | Place/Time Arrive |
August 6 | UA 674 | New York, JFK 6:30 AM | Puerto Rico Int. Airport 9:00AM |
August 15 | UA 673 | Puerto Rico Int. Airport 1:00 PM | New York, JFK 3:30 PM |
On arriving at Puerto Rico Int, Airport, a representative of The Caribbean Hotels &Resorts will be waiting for you in order to transfer you to the hotel. The transfer to and from the airport is offered by the hotel as part of your honeymoon package. The reservation has been made for a nine-night stay under your future husband's last name. The price of the newlyweds' suite includes breakfast and one more meal at the hotel restaurant. You can also use all of the hotel facilities—pool, gym, sauna, etc. for free as part of your honeymoon package. In addition, you can take scuba diving or snorkeling classes with the hotels trained staff at a reduced price—40% off.
Thank you for choosing Destination Travels. We guarantee your honeymoon with us will be an unforgettable experience. To aid us in improving our service, please visit our website at www. destinationtravels.com and complete the questionnaire.
Destination Travels wish you all the best.
Sincerely.
Rebecca Simms
Customer Service Manager
Destination Travels
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